Mechanism for coating.



F. E. GOLDSMITH.

MECHANISM FOR COATING.

APPLICATION FILED MAY 6. 1908.

Patented July 20, 1915.

2 SHEETS-SHEET L INVENTOR WITNESSES (Lb. A M

F. E. GOLDSMITH.

MECHANISM FOR COATING.

APPLICATION FILED MAY 6. 190a.

Patented July 20,1915.

2 SHEETS-SHEET 2 A Home face of a tile and an additional amount of coating to a part of the tile, for instance one FREDERICK E. GOLDSMITH, OF HAMILTON, OHIO.

MECHANISM non COATING.

Specification of Letters Patent.

Patented July 20, 1915.

Application filed May 6, 1908. Serial No. 431,186.

To all whom it may concern Be it known that I, FREDERICK E. Gonn- SMITH, a citizen of the ing at Hamilton, in the State of Ohio, have invented certain new and useful Improvements in Mechanism for the following is a specification.

A principal object of the present invention is to provide means for applying to objects such for instance as t1le, bricks, etc, an additional amount of coating at a certain part or parts thereof. This is generally done in connection with the application of a uniform deposit of coating material to a more extensive portion of the object.

More particularly stated, my invention provides means for applying a substantially uniform deposit of coating material to one of the edges adjoining the surface mentioned.

Tile coated with material of the character used in connection with this invention are completed by firing in kilns, thereby fusing the coating material and forming a uniform glazed surface on the tile. In some cases the tile are placed in the kiln in a horizontal position, that is, withthe coated surface substantially horizontal and in this way may be successfully fired if they carry a uniform deposit of-coating on one surface. It sometimes becomes desirable for various reasons understood by those versed in the art to fire tile in a vertical position, that is with the principal coated face vertical or approximately so. If this is done when a uniform coating is applied to one surface only the glaze has a tendency to run down, leaving one edge, or a portion of the surface near one edge,unglazed or badly finished. To avoid this disadvantage I apply an excess of coating material to the edge of the tile which is to be uppermost when fired. The additional edge coating may, in some cases, be

deposited substantially at the same time that the surface coating is applied or the steps may be successive; first t e surface may be uniformly coated and thereafter the edge may have an additional amount of coating deposited on it, or first the edge may be coated and then the adjacent face may be coated.

In the accompanying drawing, I illustrate several forms of apparatus for carrying out the invention, but it is to be understood that United States, resid Coating, of which these are only exemplifications and that other mechanism may be devised for the same purpose. The figures are purely diagrammatic.

Figure 1 shows means for applying the surface and edge coating in substantially one operation; Fig. 2 shows the mechanism of Fig. 1 arranged to handle the tile traveling in, the opposite direction; Fig. 3 shows means for applying the surface coating and the edge coating by successive operations; Fig. 4: illustrates mechanism for applying additional coating to two edges of objects and also a uniform surface coating. Fig. 5 shows means for regulating the application of the edge coating by an inclined belt; Fig. 6 is a detail of the supplementary trough employed in some forms of the invention, such, for instance, as shown in Fig. 3; Fig. 7 is a front detail view of the device shown in Fig. 6. j

Referring first to Fig. 1, reference numeral l designates a pan or trough carrying liquid coating material. Any desired means may be employed for supplying the material to the trough, for circulating it therein and keeping it in desired working condition and for regulating the height of the coating in the trough.

In the trough is a roll 2. The roll is rotated as shown by the arrow by any suitable means. Adjacent to the trough at one side is a feed belt or apron 3 for supplying objects to be coated andat the other side is a carry-off belt 4., the end of which adjacent to the trough carried by the pulley 5 is preferably made adjustable toward and from the trough in any suitable way. At one side of the trough its wall 6 is extended away from roll 2 forming a space or well 7 containing coating material. 1

eference numeral 8 designates objects, such as tile, passing through the machine.

The trough 1 and roll 2 are only repre sentative of means for applying a surface coating to tile or the like. The well 7 is merely representative of means for applying additional coating to aportion of the tile. In the present case the surface of roll 2 is of such a character that it carries coating material from the trough into contact with a lower face of the tiles as they pass over it and deposits a more or less uniform coating on their lower sides. As the tiles leave the roll 2 their forward edges pass clear of the trough and are finally caught by the carryoff belt 4. If desirable or necessary a guide roller 9 may be employed to regulate the position of the tile in relation to roll 2 and the drive.

As the rear edge of the tile leaves roll 2 it drops by influence of gravity into the pool or well 7 and receives an additional deposit of coating material. The tile is then Withdrawn by belt 4 from the coating device and passes on to make room for following objects. The height of belt 4; is regulated in accordance with the arrangement of other parts of the mechanism and so as to permit the necessary drop of the rear edge of the tile. The lateral position of the end of belt 4: adjacent to the trough is adjusted to suit the dimensions of the particular objects being coated.

Fig.2 shows mechanism substantially the same as that of Fig. 1 but arranged to pass tile through the machine in the opposite direction, as indicated by the arrows. In this case the forward edge of the tile drops mto the pool and receives its coating before the tile as a whole passes the coating device. After the forward edge is coated it rises up on the roll, is caught by the guide roller 9 and passes over the roll, receiving its surface coating and thence to belt 3 which in this case serves as a carry-off belt. Adjustments of belt 4 both lateral and vertical may in this case be availed of to regulate the drop of the forward edge of the tile into the well and to adapt the machine for different sizes of objects.

In the apparatus shown in Fig. 3,. the trough 1 is provided with a plurality of coating rolls 2, 2 2". Outsidethe trough at the delivery side and near it and conveniently attached to it is a supplemental trough or pocket 10 containing coating material, which may be supplied by overflow from the main trough over the edge 6*, or in any other suitable way. Tiles are supplied to the coating rolls 2, 2 2", as in the foregoing examples to receive their surface coat, and on leaving the main coating device the forward edges of the tiles are taken up by the carry-off belt 1, as usual. As the rear edgs of the tiles leave coating roll 2 and pass the edge of the trough they drop into pocket 10 and recive an additional deposit ofcoating material. They are then carried away in the usual manner.

Figs. 6 and 7 are enlarged views of the trough employed in Fig. 3. The delivery side 6 of trough 1 is shaped cylindrically. This permits the rear edges of the tiles to slide easily down the outer upper surface of the trough intothe auxiliary pocket. The pocket 10 may be constructed in any desirable manner but a desirable form consists simply of a rubber strip laid against the trough and secured by a clip 11 formed with hooks 12 engaging the upper edge of the trough near the sides. When pocket 10 is once filled with coating material it remains distended in the position shown in Fig. 10 as long as coating material is supplied to it. The pocket when made of rubber in this fashion forms of itself a cushion which prevents injury to the tile droppingiinto it.

In some cases it is desirable to apply a second additional deposit of coating to the edge of the tile. Means for doing this is shown in Fig. 3. Near the delivery end of carry-off belt 1 a second trough or pocket 13 is arranged. The coating material is supplied to th1s in any suitable way. A second carry-oil belt 14 is arranged with one end somewhat removed from the trough 13. This end of the belt is usually made adjustable horizontally or vertically, or both. With the parts arranged as shown in the figure the forward edges of the tiles go clearof the trough 13 and are caught by belt 1 1, but

the rear edges of the tiles drop. into the trough and receive a second additional de posit of coating material.

Referring now to Fig. 4 This figure shows a different form of main coating device; 15

is a drum running in a tub ormain supply of coating material. Touching or adjacent to the drum is a shell 16 supported on a roll.

17. The drum, shell and roll-rotate as shown by the arrows. takes up coating material which is received by shell 16 and'delivered to the tile. The transfer of coating material from the drum to the shell may be facilitated by a dam 18 which forms a mound of coating mate rial between the drum and shell. Delivery and carry-off belts are provided substantially the same as in previously described structures. coating shell is a first auxiliaryooating device consisting of a trough 19. This is ar ranged with one edge near shell 16 so that the trough is filled by the drip of coating material from the shell. Insome, cases other means may be provided for filling the trough. At the other side of the coating shell is a belt 20 carried on spools 21, 22. Spool 21 is adjacent to drum 15 so that belt 20 takes up coating material from the drum.

Spool 22. is adjacent to the shell. Belt 20 runs in the direction shown by the arrow. and spools 20, 21, are suitably driven by any desirable means. Adjacent to spool 22 is a small roll 23 revolving as shown by the arrow either by its own driving means or by contact with belt 20. Coating material carried up by belt 20 is caught between the roll 23 and the belt and forms a pool 2% which constitutes a second auxiliarycoat ing device.

The forward edges of the tiles, as they are carried: toward. the coating mechanism by belt13, drop into trough 19 and receive a deposit. of coating material. Further move- The surface of the drum Between the supply belt and the.

horizontal.

ment of the tiles then brings their edges into contact with shell 16; they are impelled forward and over the shell, receiving a uniform deposit of coating on their under surfaces; during this partof their travel they may be steadied and guided by a pressure roll 25, if necessary or desirable; as the tiles leave shell 16 their forward edgespass clear of poll 24 and are caught by the carry-oif belt 4; as the rear edges of the tiles drop from the shell 16 they come in contact with belt 20 passing around spool 22, are carried forward and drop into pool 24 where they receive an additional deposit of coating material; the tiles then leave the coating mechanism and are carried away by belt 4;.

Fig. 5 shows main and auxiliary coating devices similar to those in Fig. 3 but carryoff belt 4 is designed to regulate the drop of an edge of the tile into the auxiliary trough by inclination instead of its mere positional relation to the trough. The end of the belt 4 adjacent to trough 10 is carried by two pulleys 4, 4. These are arranged so that the stretch of belt 4 is at an angle to the When the tile come upon the belt they take a position corresponding to the angle of its portion 4 and may thus be caused to drop into the trough 10 in a certain way. The angle of the belt may be varied by shifting the axis of pulley 4 For this purpose, as shown, the axle of the pulley is mounted in a slot 46 carried by a fixedstandard and nuts 4? screwed on the ends of the axle serve to retain the pulley in adjusted position.

The various features of the invention as shown in the different exemplifying forms set forth may, of course, be interchanged to any extent that may be necessary or advisable. For instance, the specific form of auxiliary coating device shown in certain of the figures may be used in connection with the main coating device in other of the fig ures and so on.

In some cases the coating device may be yieldably supported. An example is shown in Fig. 2. In this arrangement the coating roll 2 is mounted in journal blocks which are supported by springs 2. By this arrangement the objects are yieldingly supported on the coating device.

Having thus described I claim and desire ent is- 1. The combination of a main coating de vice, a supply belt, a delivery belt and an auxiliary coating device constructed and arranged to deposit coating in a different manner from the main coating device intermediate the main coating device and one of the belts.

2. The combination of a main coating device, a supply belt, a delivery belt and an auxiliary coating device intermediate the my invention what to secure by Letters Patob ects from main coating device and one of the belts, said auxiliary device being arranged at a lower level than the belt and main coating device.

8. In coating mechanism, the combination of a main coating carrier, means for passing an object to be coated in contact with the carrier so that the surface of the object receives a uniform coating therefrom, means for maintaining an auxiliar supply of coating adjacent to the main carrier, means for maintaining a second auxiliary supply of coating material somewhat removed from the first auxiliary supply, and means for passing the object to be coated in contact with said auxiliary supplies so that a re stricted portion of the object will receive a coating therefrom.

4:. In a coating apparatus, the combination of a first coating device, means for supplying coating material thereto, a second coating device, means for supplying coating material thereto, means for supplying objects to be coated to the first coating device and means for removing the objects from the second device, and a conveyer belt intermediate the coating devices for transferring the one device to the other, the belt being of such length that coating deposited on the objects by the first device may be properly dried before the objects are acted upon by the second device.

5. In ceramic coating machinery, the combination of means for maintaining a body of coating material for application, means for passing separate objects in contact with said coating means, and means for causing an additional amount of the coating material to adhere to a restricted portion of the object.

6. In ceramic coating machinery, the COHI- bination of means for feeding separated objects such as tiles in succession, coating means for applying vitreous coating material to one surface of the tiles, and means for causing an added amount of coating material to be deposited on a restricted portion of the tiles.

7. In ceramic coating machinery, the combination of a coating device for applying vitreous coating material, means for passing separated objects such as tiles in contact with said device, and means for tilting the tiles so that an additional amount of coating material is deposited upon a portion thereof.

8. In ceramic coating machinery, the combination of a main coating device for apply ing vitreous coating material, means for feeding separated objects such as tiles, in contact with such device, and means for applying additional coating material to one corner of the tile.

9. In ceramic coating machinery, the combination of a main coating device for applying vitreous coating material, means for feeding separated objects such as tiles in contact With such device, means for feeding the tile to cause additional coating material to be deposited thereon, and an auxiliary coating means for applying further additional coating material to a restricted portion of the tile.

10. In ceramic coating machinery, the combination of means for maintaining a body of vitreous coating for deposition, means for feeding separated objects such as tile to be coated, and a carrying-01f belt arranged in such relation to the coating supply that the tiles are tilted in removing the Copies of this patent may be obtained for for applying coating to one surface of the tile, means for applying additional coating to a corner of the tile adjacent to said surface, and a delivery belt.

FREDERICK E. GOLDSMITH.

Witnesses JAMES W. SEE, M. S. BELDEN.

five cents each, by addressing the Commissioner of Patents.

Washington, D. 0. 

